4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2012, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
32 #ifndef _OFD_INTERNAL_H
33 #define _OFD_INTERNAL_H
36 #include <obd_class.h>
37 #include <dt_object.h>
38 #include <md_object.h>
39 #include <lustre_fid.h>
41 #define OFD_INIT_OBJID 0
42 #define OFD_PRECREATE_BATCH_DEFAULT (OBJ_SUBDIR_COUNT * 4)
44 /* on small filesystems we should not precreate too many objects in
45 * a single transaction, otherwise we can overflow transactions */
46 #define OFD_PRECREATE_SMALL_FS (1024ULL * 1024 * 1024)
47 #define OFD_PRECREATE_BATCH_SMALL 8
49 /* Limit the returned fields marked valid to those that we actually might set */
50 #define OFD_VALID_FLAGS (LA_TYPE | LA_MODE | LA_SIZE | LA_BLOCKS | \
51 LA_BLKSIZE | LA_ATIME | LA_MTIME | LA_CTIME)
53 #define OFD_SOFT_SYNC_LIMIT_DEFAULT 16
56 * update atime if on-disk value older than client's one
57 * by OFD_ATIME_DIFF or more
59 #define OFD_DEF_ATIME_DIFF 0 /* disabled */
63 LPROC_OFD_STATS_READ_BYTES = 0,
64 LPROC_OFD_STATS_WRITE_BYTES,
66 LPROC_OFD_STATS_WRITE,
67 LPROC_OFD_STATS_GETATTR,
68 LPROC_OFD_STATS_SETATTR,
69 LPROC_OFD_STATS_PUNCH,
71 LPROC_OFD_STATS_DESTROY,
72 LPROC_OFD_STATS_CREATE,
73 LPROC_OFD_STATS_STATFS,
74 LPROC_OFD_STATS_GET_INFO,
75 LPROC_OFD_STATS_SET_INFO,
76 LPROC_OFD_STATS_QUOTACTL,
77 LPROC_OFD_STATS_PREALLOC,
81 static inline void ofd_counter_incr(struct obd_export *exp, int opcode,
82 char *jobid, long amount)
84 if (exp->exp_obd && exp->exp_obd->obd_stats)
85 lprocfs_counter_add(exp->exp_obd->obd_stats, opcode, amount);
87 if (exp->exp_obd && obd2obt(exp->exp_obd)->obt_jobstats.ojs_hash &&
88 (exp_connect_flags(exp) & OBD_CONNECT_JOBSTATS))
89 lprocfs_job_stats_log(exp->exp_obd, jobid, opcode, amount);
91 if (exp->exp_nid_stats != NULL &&
92 exp->exp_nid_stats->nid_stats != NULL) {
93 lprocfs_counter_add(exp->exp_nid_stats->nid_stats, opcode,
99 struct list_head os_list;
101 spinlock_t os_last_oid_lock;
102 struct mutex os_create_lock;
104 atomic_t os_precreate_in_progress;
105 struct dt_object *os_lastid_obj;
106 unsigned long os_destroys_in_progress:1,
111 struct dt_device ofd_dt_dev;
112 struct dt_device *ofd_osd;
113 struct obd_export *ofd_osd_exp;
114 /* DLM name-space for meta-data locks maintained by this server */
115 struct ldlm_namespace *ofd_namespace;
118 struct lu_target ofd_lut;
119 struct dt_object *ofd_health_check_file;
120 struct local_oid_storage *ofd_los;
122 __u64 ofd_inconsistency_self_detected;
123 __u64 ofd_inconsistency_self_repaired;
125 struct ofd_access_log *ofd_access_log;
126 unsigned int ofd_access_log_size;
127 unsigned int ofd_access_log_mask;
129 struct list_head ofd_seq_list;
130 rwlock_t ofd_seq_list_lock;
132 int ofd_precreate_batch;
133 spinlock_t ofd_batch_lock;
135 /* preferred BRW size, decided by storage type and capability */
137 spinlock_t ofd_flags_lock;
138 unsigned long ofd_raid_degraded:1,
139 /* sync journal on writes */
141 /* Protected by ofd_lastid_rwsem. */
142 ofd_lastid_rebuilding:1,
143 ofd_record_fid_accessed:1,
144 ofd_lfsck_verify_pfid:1,
147 struct seq_server_site ofd_seq_site;
148 /* the limit of SOFT_SYNC RPCs that will trigger a soft sync */
149 unsigned int ofd_soft_sync_limit;
150 /* Protect ::ofd_lastid_rebuilding */
151 struct rw_semaphore ofd_lastid_rwsem;
152 __u64 ofd_lastid_gen;
153 struct task_struct *ofd_inconsistency_task;
154 struct list_head ofd_inconsistency_list;
155 spinlock_t ofd_inconsistency_lock;
156 /* Backwards compatibility */
157 struct attribute *ofd_read_cache_enable;
158 struct attribute *ofd_read_cache_max_filesize;
159 struct attribute *ofd_write_cache_enable;
160 time64_t ofd_atime_diff;
163 static inline struct ofd_device *ofd_dev(struct lu_device *d)
165 return container_of_safe(d, struct ofd_device, ofd_dt_dev.dd_lu_dev);
168 static inline struct obd_device *ofd_obd(struct ofd_device *ofd)
170 return ofd->ofd_dt_dev.dd_lu_dev.ld_obd;
173 static inline struct ofd_device *ofd_exp(struct obd_export *exp)
175 return ofd_dev(exp->exp_obd->obd_lu_dev);
178 static inline char *ofd_name(struct ofd_device *ofd)
180 return ofd->ofd_dt_dev.dd_lu_dev.ld_obd->obd_name;
184 struct lu_object_header ofo_header;
185 struct dt_object ofo_obj;
186 struct filter_fid ofo_ff;
187 time64_t ofo_atime_ondisk;
188 unsigned int ofo_pfid_checking:1,
192 static inline struct ofd_object *ofd_obj(struct lu_object *o)
194 return container_of_safe(o, struct ofd_object, ofo_obj.do_lu);
197 static inline int ofd_object_exists(struct ofd_object *obj)
199 LASSERT(obj != NULL);
200 if (lu_object_is_dying(obj->ofo_obj.do_lu.lo_header))
202 return lu_object_exists(&obj->ofo_obj.do_lu);
205 static inline struct dt_object *fo2dt(struct ofd_object *obj)
207 return &obj->ofo_obj;
210 static inline struct dt_object *ofd_object_child(struct ofd_object *_obj)
212 struct lu_object *lu = &(_obj)->ofo_obj.do_lu;
214 return container_of(lu_object_next(lu), struct dt_object, do_lu);
217 static inline struct ofd_device *ofd_obj2dev(const struct ofd_object *fo)
219 return ofd_dev(fo->ofo_obj.do_lu.lo_dev);
222 static inline void ofd_read_lock(const struct lu_env *env,
223 struct ofd_object *fo)
225 struct dt_object *next = ofd_object_child(fo);
227 next->do_ops->do_read_lock(env, next, 0);
230 static inline void ofd_read_unlock(const struct lu_env *env,
231 struct ofd_object *fo)
233 struct dt_object *next = ofd_object_child(fo);
235 next->do_ops->do_read_unlock(env, next);
238 static inline void ofd_write_lock(const struct lu_env *env,
239 struct ofd_object *fo)
241 struct dt_object *next = ofd_object_child(fo);
243 next->do_ops->do_write_lock(env, next, 0);
246 static inline void ofd_write_unlock(const struct lu_env *env,
247 struct ofd_object *fo)
249 struct dt_object *next = ofd_object_child(fo);
251 next->do_ops->do_write_unlock(env, next);
255 * Common data shared by obdofd-level handlers. This is allocated per-thread
256 * to reduce stack consumption.
258 struct ofd_thread_info {
259 const struct lu_env *fti_env;
261 struct obd_export *fti_exp;
263 __u64 fti_pre_version;
265 struct lu_fid fti_fid;
266 struct lu_attr fti_attr;
267 struct lu_attr fti_attr2;
268 struct ldlm_res_id fti_resid;
269 struct filter_fid fti_mds_fid;
270 struct ost_id fti_ostid;
271 struct ofd_object *fti_obj;
273 char name[64]; /* for ofd_init0() */
274 struct obd_statfs osfs; /* for obdofd_statfs() */
277 /* Ops object filename */
278 struct lu_name fti_name;
279 struct dt_object_format fti_dof;
280 struct lu_buf fti_buf;
283 struct ost_lvb fti_lvb;
285 struct lfsck_req_local fti_lrl;
286 struct obd_connect_data fti_ocd;
290 extern void target_recovery_fini(struct obd_device *obd);
291 extern void target_recovery_init(struct lu_target *lut, svc_handler_t handler);
293 /* ofd_access_log.c */
294 bool ofd_access_log_size_is_valid(unsigned int size);
295 int ofd_access_log_module_init(void);
296 void ofd_access_log_module_exit(void);
298 struct ofd_access_log;
299 struct ofd_access_log *ofd_access_log_create(const char *ofd_name, size_t size);
300 void ofd_access_log_delete(struct ofd_access_log *oal);
301 void ofd_access(const struct lu_env *env, struct ofd_device *m,
302 const struct lu_fid *parent_fid, __u64 begin, __u64 end,
303 unsigned int size, unsigned int segment_count, int rw);
306 extern struct lu_context_key ofd_thread_key;
307 int ofd_postrecov(const struct lu_env *env, struct ofd_device *ofd);
308 int ofd_fiemap_get(const struct lu_env *env, struct ofd_device *ofd,
309 struct lu_fid *fid, struct fiemap *fiemap);
312 extern const struct obd_ops ofd_obd_ops;
313 int ofd_destroy_by_fid(const struct lu_env *env, struct ofd_device *ofd,
314 const struct lu_fid *fid, int orphan);
315 int ofd_statfs(const struct lu_env *env, struct obd_export *exp,
316 struct obd_statfs *osfs, time64_t max_age, __u32 flags);
317 int ofd_obd_disconnect(struct obd_export *exp);
320 u64 ofd_seq_last_oid(struct ofd_seq *oseq);
321 void ofd_seq_last_oid_set(struct ofd_seq *oseq, u64 id);
322 int ofd_seq_last_oid_write(const struct lu_env *env, struct ofd_device *ofd,
323 struct ofd_seq *oseq);
324 int ofd_seqs_init(const struct lu_env *env, struct ofd_device *ofd);
325 struct ofd_seq *ofd_seq_get(struct ofd_device *ofd, u64 seq);
326 void ofd_seq_put(const struct lu_env *env, struct ofd_seq *oseq);
328 int ofd_fs_setup(const struct lu_env *env, struct ofd_device *ofd,
329 struct obd_device *obd);
330 void ofd_fs_cleanup(const struct lu_env *env, struct ofd_device *ofd);
331 int ofd_precreate_batch(struct ofd_device *ofd, int batch);
332 struct ofd_seq *ofd_seq_load(const struct lu_env *env, struct ofd_device *ofd,
334 void ofd_seqs_fini(const struct lu_env *env, struct ofd_device *ofd);
335 void ofd_seqs_free(const struct lu_env *env, struct ofd_device *ofd);
338 int ofd_start_inconsistency_verification_thread(struct ofd_device *ofd);
339 int ofd_stop_inconsistency_verification_thread(struct ofd_device *ofd);
340 int ofd_verify_ff(const struct lu_env *env, struct ofd_object *fo,
342 int ofd_verify_layout_version(const struct lu_env *env,
343 struct ofd_object *fo, const struct obdo *oa);
344 int ofd_preprw(const struct lu_env *env,int cmd, struct obd_export *exp,
345 struct obdo *oa, int objcount, struct obd_ioobj *obj,
346 struct niobuf_remote *rnb, int *nr_local,
347 struct niobuf_local *lnb);
348 int ofd_commitrw(const struct lu_env *env, int cmd, struct obd_export *exp,
349 struct obdo *oa, int objcount, struct obd_ioobj *obj,
350 struct niobuf_remote *rnb, int npages,
351 struct niobuf_local *lnb, int old_rc, int nob,
355 struct thandle *ofd_trans_create(const struct lu_env *env,
356 struct ofd_device *ofd);
357 int ofd_trans_start(const struct lu_env *env,
358 struct ofd_device *ofd, struct ofd_object *fo,
360 int ofd_trans_stop(const struct lu_env *env, struct ofd_device *ofd,
361 struct thandle *th, int rc);
362 int ofd_txn_stop_cb(const struct lu_env *env, struct thandle *txn,
366 int ofd_tunables_init(struct ofd_device *ofd);
367 #ifdef CONFIG_PROC_FS
368 void ofd_stats_counter_init(struct lprocfs_stats *stats, unsigned int offset,
369 enum lprocfs_counter_config cntr_umask);
372 ofd_stats_counter_init(struct lprocfs_stats *stats,
374 enum lprocfs_counter_config cntr_umask) {}
378 struct ofd_object *ofd_object_find(const struct lu_env *env,
379 struct ofd_device *ofd,
380 const struct lu_fid *fid);
381 int ofd_object_ff_load(const struct lu_env *env, struct ofd_object *fo);
382 int ofd_object_ff_update(const struct lu_env *env, struct ofd_object *fo,
383 const struct obdo *oa, struct filter_fid *ff);
384 int ofd_precreate_objects(const struct lu_env *env, struct ofd_device *ofd,
385 u64 id, struct ofd_seq *oseq, int nr, int sync,
388 static inline void ofd_object_put(const struct lu_env *env,
389 struct ofd_object *fo)
391 dt_object_put(env, &fo->ofo_obj);
393 int ofd_attr_set(const struct lu_env *env, struct ofd_object *fo,
394 struct lu_attr *la, struct obdo *oa);
395 int ofd_object_punch(const struct lu_env *env, struct ofd_object *fo,
396 __u64 start, __u64 end, struct lu_attr *la,
398 int ofd_object_fallocate(const struct lu_env *env, struct ofd_object *fo,
399 __u64 start, __u64 end, int mode, struct lu_attr *la,
401 int ofd_destroy(const struct lu_env *, struct ofd_object *, int);
402 int ofd_attr_get(const struct lu_env *env, struct ofd_object *fo,
404 int ofd_attr_handle_id(const struct lu_env *env, struct ofd_object *fo,
405 struct lu_attr *la, int is_setattr);
408 struct ofd_object *ofd_object_find_exists(const struct lu_env *env,
409 struct ofd_device *ofd,
410 const struct lu_fid *fid)
412 struct ofd_object *fo;
414 fo = ofd_object_find(env, ofd, fid);
415 if (!IS_ERR(fo) && !ofd_object_exists(fo)) {
416 ofd_object_put(env, fo);
417 fo = ERR_PTR(-ENOENT);
423 int ofd_fid_set_index(const struct lu_env *env, struct ofd_device *ofd,
425 int ofd_fid_init(const struct lu_env *env, struct ofd_device *ofd);
426 int ofd_fid_fini(const struct lu_env *env, struct ofd_device *ofd);
429 extern struct ldlm_valblock_ops ofd_lvbo;
432 extern struct kmem_cache *ldlm_glimpse_work_kmem;
434 int ofd_intent_policy(const struct lu_env *env, struct ldlm_namespace *ns,
435 struct ldlm_lock **lockp, void *req_cookie,
436 enum ldlm_mode mode, __u64 flags, void *data);
438 static inline struct ofd_thread_info *ofd_info(const struct lu_env *env)
440 return lu_env_info(env, &ofd_thread_key);
443 static inline struct ofd_thread_info *ofd_info_init(const struct lu_env *env,
444 struct obd_export *exp)
446 struct ofd_thread_info *info;
448 info = ofd_info(env);
449 LASSERT(info->fti_exp == NULL);
450 LASSERT(info->fti_env == NULL);
451 LASSERT(info->fti_attr.la_valid == 0);
455 info->fti_pre_version = 0;
459 static inline struct ofd_thread_info *tsi2ofd_info(struct tgt_session_info *tsi)
461 struct ptlrpc_request *req = tgt_ses_req(tsi);
462 struct ofd_thread_info *info;
464 info = ofd_info(tsi->tsi_env);
465 LASSERT(info->fti_exp == NULL);
466 LASSERT(info->fti_env == NULL);
467 LASSERT(info->fti_attr.la_valid == 0);
469 info->fti_env = tsi->tsi_env;
470 info->fti_exp = tsi->tsi_exp;
472 info->fti_xid = req->rq_xid;
473 /** VBR: take versions from request */
474 if (req->rq_reqmsg != NULL &&
475 lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) {
476 __u64 *pre_version = lustre_msg_get_versions(req->rq_reqmsg);
478 info->fti_pre_version = pre_version ? pre_version[0] : 0;
483 /* sync on lock cancel is useless when we force a journal flush,
484 * and if we enable async journal commit, we should also turn on
485 * sync on lock cancel if it is not enabled already. */
486 static inline void ofd_slc_set(struct ofd_device *ofd)
488 if (ofd->ofd_sync_journal == 1)
489 ofd->ofd_lut.lut_sync_lock_cancel = SYNC_LOCK_CANCEL_NEVER;
490 else if (ofd->ofd_lut.lut_sync_lock_cancel == SYNC_LOCK_CANCEL_NEVER)
491 ofd->ofd_lut.lut_sync_lock_cancel = SYNC_LOCK_CANCEL_ALWAYS;
494 static inline int ofd_validate_seq(struct obd_export *exp, __u64 seq)
496 struct filter_export_data *fed = &exp->exp_filter_data;
498 if (unlikely(seq == FID_SEQ_OST_MDT0 && fed->fed_group != 0)) {
499 /* IDIF request only operates on MDT0 group */
500 CERROR("%s: Invalid sequence %#llx for group %u\n",
501 exp->exp_obd->obd_name, seq, fed->fed_group);
509 * whether the requestion IO contains older layout version than that on the
512 static inline bool ofd_layout_version_less(__u32 req_version,
513 __u32 ondisk_version)
515 __u32 req = req_version & ~LU_LAYOUT_RESYNC;
516 __u32 ondisk = ondisk_version & ~LU_LAYOUT_RESYNC;
519 * request layout version could be circularly increased to the samllest
520 * value, in that case @req < @ondisk but @req does not have the high
521 * end bit set while @ondisk does.
523 return (req < ondisk) &&
524 ((req & LU_LAYOUT_HIGEN) == (ondisk & LU_LAYOUT_HIGEN));
527 static inline int ofd_seq_is_exhausted(struct ofd_device *ofd,
528 const struct obdo *oa)
530 struct seq_server_site *ss = &ofd->ofd_seq_site;
531 __u64 seq_width = ss->ss_client_seq->lcs_width;
532 __u64 seq = ostid_seq(&oa->o_oi);
533 __u64 oid = ostid_id(&oa->o_oi);
535 if (fid_seq_is_norm(seq))
536 return oid >= min(seq_width, OBIF_MAX_OID);
537 if (fid_seq_is_idif(seq) || fid_seq_is_mdt0(seq))
538 return oid >= min(seq_width, IDIF_MAX_OID);
539 CERROR("%s : invalid o_seq "DOSTID"\n",
540 ofd_name(ofd), POSTID(&oa->o_oi));
544 #endif /* _OFD_INTERNAL_H */